88 broncoII with the 2.9 EFI. If i let it sit overnight it will start right up in the morning. The problem is when i shut it off the truck wont start back up and i can smell gas. Sometimes it will start back up after shutting it off. If it does decide to run it misses when i rev it up and when i drive it, it misses really bad. It seems as if its flooding.

Ive already replaced the thermostat, ignition module, wires, cap, rotor, and plugs. Its getting good spark and the fuel pressure is good. The fuel filter was changed last fall. Im starting to run out of ideas on what to try next. Any ideas or experiences?

Look for a schrader valve on the fuel rail somewhere. See if there is fuel pressure there right after you shut it off. Get it going again then let it sit for a couple of hours and check it again to see if there is still pressure. I am sure that there is a more scientific way to check it with a gauge but this might give you a good idea of the residual pressure.

Once you get it to run like crap, try to turn the distributor a little each way to see if its a timing issue. Get the ingition coil checked, even if it does "work" it may not be throwing enough voltage. Other possible suspects is your intake gaskets are leaking, heads are warped, bad piston rings.

Once you get it to run like crap, try to turn the distributor a little each way to see if its a timing issue. Get the ingition coil checked, even if it does "work" it may not be throwing enough voltage. Other possible suspects is your intake gaskets are leaking, heads are warped, bad piston rings.

it does have a leak at the oil pan gasket, a few drops on the ground each night. Would that mean anything?